Wire-drawing machine.



No. 880,178. PATENTLD FEB. 25, 1908.

- H. L. THOMPSON.

WIRE DRAWING-MACHINE.

APPLICATION FILED JUNE 5.1905.

.4 SHEETS-SHEET 1.

No. 880,178. PATENTED FEB. 25, 1908. H, L. THOMPSON.

WIRE DRAWING MACHINE.

APPLICATION FILED JUNE 5.1905.

4 SHEETS-SHEET 2.

No 8802178. PATENTED FEB. 25, 1908.

H. L. THOMPSON.

WIRE DRAWING MACHINE.

APPLIOATION FILED JUNE 5.1905.

4 SHEETS-SHEET S.

No. 880,178. ZATENTED FEB. 25, 1908.

H L. EQMPSONL WIRE nmwnm magma.

APPLIOATIOE' FILED SUE 5. 1905.

A smms-snnaw 4'.

adaptedi'or'the drawing ofheavy wire.

ithe block hroken'away Fig; 4'is a section u hcumhe'seveml views."

iaws 5"and 6,.supported and operated asiereinafter to be described.-

tertiary, in the-county of htewllaven and State of Connecticut, have invented a new for supporting'andmoving the die, improved 15 thej preliminary' position. Fig. 2 is a dam block rotated'byshaft 2, aving a journaled' v nd disconnected with t the usualand'wvell-known ways, which not provide mechanism for the convenient sup- UNITED strAtr zs' PATENT orFioE.

HUGH L. THOMPSON, OF \VATI'JRBURY, CONNECTICUT.

WIRE-DRAWING MACHINE.

'T 0 all whom it concern:

Be it known that l, HUGH L. Tnomrsox, a citizen of the United States,-residmg at W11 and useful Wire-Drawing Machine, of which the following is 'a specification. v

, a My invention re ates to improvements in wire drawing machines, especially to that class of wire drawing machines, usually known as'bull. block machines, which are My object is t c-provide improved means means forsupporting the wire to bedrawn,

and improved gripping ineans for securing theiwiretotheblock. u

Figure l is aside-elevation of my device in view-of same Fig. 3 is an elevation o my device with parts lnsection and a portion of scale. 7 5 isa sectionon line 5, 5 of I ig.

4. Figi-fiis a'secti'on' on line 6, 6 of Fig. 5.-

J Similar numerals" refer to similar parts e e'i'iingtothe drawin s, 1 represents the bearing. 3, and driven through ear 4." .The block is adaptedto be 0 )eratively connected he shaft 2, in any of being art of my invention, is not shown. Thisb oek .1 is provided with the gripping The (lie 7 is located and sup )ortedin the die member 8, which is piv'otallvsecured at 9 to membcrIO, which is pivotal y secured at 11 to the sta-. tionary framework. Upon member 8 is se. cured the pan 12 which is adapted to su )port the coil of wire as the .s'ame is being drawn throu h die 7. 'l.hc machine illustrated in' the ili'awings is adapted for veryheavy grades of wire. For this reason the machine itself is ponderous and makes it desirable to orting and manipulation of the die mein- Aswill be seen in Fig. 3, the free end ofdie members is supported when in the initial po sition upon the vertically movable table 13. This table has in vertical extepsion 13' hencath it, which is provided with the rack 14,

Specification of Letters Patent.

. Application filed June 5- 1905. Serial No. 263.762-

see Fig. 3, similar to that shown in' Fig. I,

patented res. 25,-190s.

said pinion 15 being keyed-to the shaft 1.6 which carries the pulley 17. Pulley 1 7-is provided with chain 18 and weight 19. By this means it will beseen that th'eweight of die member 8 communicated to table 13 is counterbalanced by the weight 19 operating on pulley 17. Upon the shaft 16 is also pro-.

which forms a support and guide for the horizontal movement of the die member 8,

that is, assuming the die member to start from the initial osition shown'in Fig. 3 the adapted to cooperate with the pinion 15,-

the space provided therefor in frameworkhe upper horizontal portion 24 of rotation of the b ock 1 in the direction of the arrow shown in Fig. 1,.causes the elevation of the die member 8 and. table 13, resulting from the pull of the wire through the die,

until the top of table 13 has come into aline- Inent with-the to of horizontal portion 24',

and the, die mom or 8 is then free to swing horizontally as the wire travels along the block 1 with each fold thereon. Asthe weight 19 is adapted normally. to' counterbalance the weight of the die when the coil or wire is resting upon pan 12, it will ordinarily result that when the wire has been entirely-drawn through the die leaving pan 12 empty,it will be necessary in returning the die member 8 to the initial position as shown in Fig- 3, to exert pressure upon the foot overcome, the counterbalancing effect of weight 19. The keeper 25, controlled by pedal 22, to.

the spriiig 26, is adapted to coiiperatewith. the lug 27 on member 13' to lock the table 13 in the dc ressed position, when'it has been returner thereto as above described, or rather this spring catch mechanism-is adapted to hold the table 13 in the depressed position when first returned to such a position, and prevent the bouncing thereof after the foot 18 removed from pedal 22.

operated plunger 29 through ban wheel 28.

Means are also pr' :idcd for automatically returning the block 1 to the initial position The desired tension of spring 26 18 secured b the screw tion. This automatic means is provided by properl loading the block 1, which consists prefera ly in pouring lead into the hollowed out portion of the b ock ,to a suitable level, 5 as indicated for example by the dotted line 51 in Fig. '4', so that when it is set, it will serve as a counterbalance or ravity means for normally returning the lock to said initial position with respect to the die, when the block "s disconnected from operative relationship with this driving, shaft.

A preferred form of gripping device suitable for cooperation with the block above described, is illustrated in detail in Figs. 4, 5 5 and 6. Referring to Figs. 4 and 5 the journaled member-301sseated in a suitable a er.- ture in block 1 and is adapted to have a imited rotative movement therein. Through the entire longitudinal extension of joureccentric with journaled member an rotatable therein. Spindle 31 is provided with a knurled head 32 for its manual operation. It is to be noted that journaled 5 member 30 has .an enlarged end 33 which is cut out upon one side and provided with the convergent channels or ways 34 and 35. .In

these convergent channels or ways 34 and 35 are suitably seated the jaws 5 and 6 respec-. tively, adapted to slide therein toward and away from each other. These jaws 5 and 6 are preferably rovided with the serrated surfaces 36 to increase their efficiency of grip. At the rear of these jaws 5 and 6 are 35 provided the serrations 37 and 38 formin racks for cooperation with the inions 39 am 40 provided on spindle 31. 11 view of the tilt of the plane of the contact faces 36, see Fig. 5, it will be obvious that the line of 4 travel of jaw 5 will be at an an le greater with respect to the axis of spind e 31 than that of aw 6. For this reason the longitudinal extension of pinion 39 is greater than that of 40.

5 It will be obvious from the construction above described that the turning of the knurled head 32 will cause the rotation of pinions 39 and- 40 to move the jaws 5 and 6 ackward and forward in their convergent 5 seats so that the contact faces 36 ,of said jaws 5 and 6'may be brought to ether or separated from each other. W on said jaws have come in contact with the wire to grip the same, any ull of the wire will tend to draw the 'aws' c oser together and to increase the efhciency of their'grip. Around the narrower portion'41 of journaled member 30 is provided the sprin 42 operating betweensaid 'ournaled mem er 30 and the 0 surrounding b ock 1, for the purpose of normally maintaining said journaled member and consequently the gripping jaws in the initial osltion, name y the position in which the wire is secured and held radially 55 with respect to the block 1. The spindle 31,

naled member 30,extends the spindle 31 .the peripheral surface of iournaled carried by the journaled member 30, has a translative movement in aperture 50 of plate 48 and is adapted to come into contact with the extremes of said aperture to limit the rotative movement in either direction of saidjournaled member 30. The said elements .are so associated that after the wire has been secured in the jaws and the block started to rotate in the direction of the arrow shown in Fig. 1, the whole journaled member 30 with jaws 5 and 6 Wlll rotate with respect to the block in the direction opposite troughs direction of the relation 0 the block la the wire'upon the an tical surface o said block without "any' sharp bendingof said wire.- The plate'45 is suitably secured in the ga jorirecess off d member 30 torotect the Eee'th of 'piriidiis 39 f and 40 from gr1 and U The method of-securin th ui'nal member and its associate Inic'v in-il. the block is as follows: Thesaidjoii aleda member is inserted in the 'recessp'j f'ded therefor in the block through the ehd 46 The plate 471s then secure byfs crew'sflnot" shown or other suitable means to, the and o journaled member 30' and projects beyonf 30m 006 rate with shou ders inib lock'f 1 t prevent t e withdrawal of member 36' from-1' 9 .the block. A further plate 48 is secured to the end of the block by screws 49,'see Fig. 1',

or other suitable means, to prevent the movement of the journaled member 30 in- -the o posite direction. Thus the journaled 10 mem or while having limited rotation in the block, is secured against longitudinal move: ment therein.

WhatIclaimisz- 1. In a wire drawing machine, the co'mbi- 10 nation of a block having a horizontal axis of rotation, a. die holder, a counterbalanced elevating device therefor and rack and pin ion means for o erati'ng the same.

2. In a wire rawing device, the combination of a block having a horizontal axis ofrotation, a die holder, a coil supporting device connected therewith, a counterbalanced elevating device therefor'and means for arbitrarily operating said elevating de- 11 vice.

3. In a wire drawing device, the combination of a block having a horizontal axis of rotation, acoil supportin and die holding member, mechanism for e evating and low- 1;

-ering said member comprising a pinion .rotation, a die holder, a counterbalanced elevating device therefor, rackandpinion ears for operating. the same, and a spring 1:

controlled keeper for the counterbalanced mechanism. i 5. In a wire drawing machine, the combination of a block having a horizontal axis of rotation, gripping mechanism connected therewith, a'pivo ted die holder and a counterbalanced elevatin device therefor, a table connected with t e elevating device, and rack and pinion means for its operation.

10 6. In a wire drawing machine, the .cornbination of a block having a horizontal axis of rotation, gripping mechanism connected therewith, a pivoted die holder therefor, a

counterbz fllanced elevating device for the.

die hold'c: comprising a counterbalanced shaft, a Incl: and pinion having operative relationship therewith, and a further rack and pinion means for the arbitrary actuation of said shaft.

7. In a wire drawing device, the combination of a block having a horizontal axis of rotation, a vertically and horizontally movable die holder, a counterbalanced elevating device for' controlling its -vert1cal movement 25,, and supporting means for horizontal move ment. I

8. .The combination of a wire drawing block having horizontal axis, grippingrjaws having a rotatable relation therewith, a movable die holder adapted to move from. the

' l radial to'the tangential position with respect.

.to the'block, arbitrary means for moving the die holder to the-radial position and counterthe block to normally return the block to a position in which the gripping jaws shall be in radial alinement with the die holder when in said initial position.

10. In combination with 'a wire drawing block, and extending parallel with the axis position.

I ally operative rack and .pinion rneixn if block, a cylindrical member journaled in the block, and extending arallel with the axis of the block and provided with transversely extending gripper jaws.

- 11. in combination with awire drawing block, a cylindrical member journaled in the block, and extending parallel with the axis of the block, said cylindrical member having a transverse recess and provided with con -vergently movable gripper jaws.

12. In combination With a wire drawing block, a cylindrical-member journaled in the of the bloc'k,said cylindrical member having a transverse recess and provided with convergently movable gripper jaws," and rack and pinion means for operating tll e'g'ripper jaws, the pinion journaled in thecylindrical member having its axis arallel with the axis of said cylindrical mem her.

13. The combination with a;wire drawing block, a cylindrical member journaled in the block,and extending parallel withltheaxis of f 'the block and provided with transversely.

extending ripper jaws, and spring operatirig I between the cylindrical member 'andmtlnivs block for maintaining saidmeiub'er litillltlfil 14. In combination with wire --'ilrawing block, a cylindrical member journaledqnxtl e 5 block, and extending;parallel-with the ILXIS'QQ of the book, saidcylindrical,member havirig'i; a transverse reces's'and -provided 'witli;..con

vergently movable"gripperijaws andfmanuactuating the jaws. I 15. In combination'with a wire drawing block, a cylindrical member extending sub-. stantially through the longitudinai extent of the block and journaled in said block-said cylindrical member provided with transverse convergent recesses or ways andgripper jaws movably seated in .s aid' *recesses and means for the arbitrarysactiiation of said aws. 3 HUGH L. THOMPSON. Witnesses:

CAROLINE S. CHURCH, Ronnwr I-IQ RnYNoLns'. 

